left\_all\_next\_yr&Mean&Sd&N \\
&Grades residual&Std Dev&N \\
\hline
1&-0.548&0.979&140 \\
2&0.053&0.739&1444 \\
Total&0.000&0.782&1584 \\
left\_all\_next\_yr2&Mean&Sd&N \\
&Grades residual&Std Dev&N \\
\hline
1&-0.310&1.057&229 \\
2&0.132&0.815&539 \\
Total&0.000&0.916&768 \\
